VOGONS

3dfx Voodoo 1 texture error

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First post, by csal

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My ArcadeFX Voodoo 1 suddenly started having texture corruption and I'm hoping someone can tell me if the problem is the TMU or the memory based on these pictures. A year ago I had to replace two capacitors on it and I have no idea if the replacement capacitors are actually correct so I accept that my shoddy repair job may have slowly fried it. I've also been running it with SST_GRXCLK set to 60 but with double heatsinks and a case fan on it to handle the heat.

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Reply 1 of 2, by rasz_pl

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Voodoo cards solder connections are is getting crusty after all those years. Its most likely bad/cracked joint. You can test by squeezing different chips with your fingers while restarting the game. tldr: resolder main chips leg by leg with fresh solder and good flux.

https://github.com/raszpl/sigrok-disk FM/MFM/RLL decoder
https://github.com/raszpl/FIC-486-GAC-2-Cache-Module (AT&T Globalyst)
https://github.com/raszpl/386RC-16 ram board
https://github.com/raszpl/440BX Reference Design adapted to Kicad

Reply 2 of 2, by giantclam

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^.... that, plus if you can underclock it and the artifacts go away, it's likely ram...

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